Antenna tower · 2026
Morristown East
Morristown, SD · near Lemmon Muni (21.6 mi)
What this outcome means
The FAA studied the proposal and concluded it would not be a hazard to air navigation. A no-hazard determination is not permanent — it carries an expiration date, and if the structure is not built by then the case has to be re-filed.
The proposal, in the filer's words
"re-filing as prior ASN has expired. Tower has not been constructed."
Filing details
- Case number (ASN)
- 2026-AGL-12503-OE
- Structure
- Morristown East
- Type
- Tower / antenna
- Category
- Antenna tower
- Height above ground
- 304 ft
- Height above sea level
- 2,577 ft
- Site elevation
- 2,273 ft
- Notice of
- New Construction
- Duration
- Permanent
- Marking & lighting
- Dual-red and medium intensity
Timeline
- Filed
- July 31, 2026
- Determined
- August 14, 2026
- Determination expires
- February 14, 2028
A determination that lapses before the structure is built has to be re-filed. The FAA does not send a reminder.
Who filed it
- Sponsor
- Standing Rock Sioux Tribe
- Representative
- Ron Lageson
Names are shown as they appear in the FAA's public record. How we handle names
Location
- Coordinates
- 45.928258, -101.658117
- Degrees / minutes / seconds
- 45°55'41.7"N 101°39'29.2"W
- County
- Corson
- Open in a map
- Google MapsOpenStreetMap
About this record
This page is a readable copy of a public record published by the FAA's Obstruction Evaluation / Airport Airspace Analysis system. It is not the official record and may lag it. For the authoritative case status, search this ASN at the FAA's OE/AAA portal. If something here is wrong, email support@idea-engine.studio and we will correct it.
Source: FAA Obstruction Evaluation / Airport Airspace Analysis (OE/AAA) public archive (oeaaa.faa.gov), data as of September 12, 2026. Compiled by LOS Analyzer (Idea Engine LLC). This is not an official FAA record or an FAA determination; the FAA's portal is authoritative. LOS Analyzer is not affiliated with or endorsed by the FAA.
Screening a structure of your own?
Check Part 77 and the tower's line of sight before you file
LOS Analyzer screens a proposed structure against FAA Part 77 surfaces and the control tower's sightline to the runway, terrain-aware, in minutes. It is a preliminary screening — not an FAA determination and not a substitute for a licensed engineering review.